Home / 1,079,661.90-1,490,928.75-723,002.70

Finding the Fourth Proportional to 1,079,661.90, 1,490,928.75 and 723,002.70

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Solution

The fourth proportional to 1,079,661.90, 1,490,928.75 and 723,002.70 is: 998,410.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,661.90 : 1,490,928.75 = 723,002.70 : x
  2. Step 2: Convert to fraction form
    1,079,661.90/1,490,928.75 = 723,002.70/x
  3. Step 3: Cross multiply
    1,079,661.90x = 1,490,928.75 × 723,002.70
  4. Step 4: Simplify right side
    1,079,661.90x = 1,077,945,511,757.62
  5. Step 5: Solve for x
    x = 1,077,945,511,757.62/1,079,661.90
  6. Step 6: Final answer
    x = 998,410.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.